Australia's lack of a definite starting seven is a powerful weapon at the world netball championships, according to skipper Natalie von Bertouch.

The Australians used the entire 12-person squad in their emphatic 81-23 win over Samoa at the Singapore Indoor Stadium and they will be looking to back that up with a solid win over Northern Ireland in their second pool game tonight.

"I don't think we have a set seven at the moment," said von Bertouch, who took over as captain after injury ruled Sharelle McMahon out of the tournament.

"I think that's a powerful weapon to have as well, we can mix it up.

"We've got so much variety so we're looking forward to continuing to have that up our sleeves."

The Australians used four different players in the goal circle against Samoa, with Caitlin Bassett posting an impressive 100 per cent record in the second half, shooting 31 goals from 31 attempts.

While debutante Erin Bell only played a quarter, the others - veterans Catherine Cox and Natalie Medhurst - also impressed.

Coach Norma Plummer also used four in defence, starting with Laura Geitz and Julie Corletto before switching to Susan Fuhrmann and Sharni Layton, with equally as impressive results.

Von Bertouch said the pool games were about working on their fledgling combinations with a number of new faces, such as Bell, Layton and Chelsea Pitman, in the squad.

"We're using these first couple of games to make sure we get all our flow together and we were pretty happy with the performance," she said.

"Our whole aim at the moment is just the combinations and getting every one out on the court and make sure were more comfortable with each other."